Measurement of Branching Fractions and CP-violating Charge Asymmetries in B{sup +} {yields} {rho}{sup +}{pi}{sup 0} and B{sup +} {yields} {rho}{sup 0}{pi}{sup +} decays, and search for B{sup 0} {yields} {rho}{sup 0}{pi}{sup 0}
- SLAC
The authors present preliminary measurements of branching fractions and CP-violating charge asymmetries in B-meson decays to {rho}{pi}. The data sample comprises 89 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factor at SLAC. They find the charge-averaged branching fractions {Beta}(B{sup +} {yields} {rho}{sup +}{pi}{sup 0}) = (11.0 {+-} 1.9(stat.) {+-} 1.9(syst.)) x 10{sup -6} and {Beta}(B{sup +} {yields} {rho}{sup 0}{pi}{sup +}) = (9.3 {+-} 1.0(stat.) {+-} 0.8(syst.)) x 10{sup -6}; they set a 90% confidence-level upper limit of {Beta}(B{sup 0} {yields} {rho}{sup 0}{pi}{sup 0}) < 2.5 x 10{sup -6}. They measure the CP-violating charge asymmetries A{sub CP}{sup {rho}{sup +}{pi}{sup 0}} = 0.23 {+-} 0.16(stat.) {+-} 0.06(syst.) and A{sub CP}{sup {rho}{sup 0}{pi}{sup +}} = -0.17 {+-} 0.11(stat.) {+-} 0.02(syst.).
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 815233
- Report Number(s):
- SLAC-PUB-10078
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the B{sup {+-}}{yields}{rho}{sup {+-}}{pi}{sup 0} branching fraction and direct CP asymmetry
Measurement of Branching Fractions and CP-Violating Asymmetries in B -> rho+/-h-/+